Food Habits of Fingerling Grass Carp

Watkins, Curtis E.; Shireman, Jerome V.; Rottmann, Roger W.; Colle, Douglas E.

doi:10.1577/1548-8659(1981)43[95:fhofgc]2.0.co;2

Cited by 17 publications

(14 citation statements)

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“…Grass carp feed mainly on zooplankton until they reach 55 mm T.L. (Sobolev, 1970;Watkins et al, 1981) and over this size they feed on a variety of aquatic vegetation types (Verigin et al, 1963;Stott, 1967;Cross, 1969;Mitzner, 1978;Hestand & Carter, 1978;Carter & Hestand, 1979). The bighead carp diet is primarily zooplankton with preference to cladocerans (Lazareva et al, 1977;Moskul, 1977;Csengeri et al, 1978).…”

Section: Resultsmentioning

confidence: 99%

Food intake and growth of hybrid carp (female grass carp, Ctenopharyngodon idella× male bighead, Aristichthys (Hypophthalmichthys) nobilis) fed on zooplankton and Chara

Kilambi

Zdinak

1982

Journal of Fish Biology

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Food intake and growth of hybrid carp (female grass carp,Ctenopharyngodon idella x male bighead, Aristichthys (Hypophthalmichthys) nobilis) fed on zooplankton and CharaHybrid carp were raised in 165 1 indoor tanks. Two tanks were used in this study each stocked with five fish (average total length and weight=235.7 mm; 116.1 g); one tank was provided with zooplankton and the other with zooplankton and Cham sp. The hybrids fed actively on zooplankton at an average daily rate of 39% and Chum at 2.6% by body weight. Growth was estimated as 0.36% (0.43 g) per day. The hybrids on the two food types showed no significant differences either in plankton consumption or growth rate.

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Section: Resultsmentioning

confidence: 99%

Food intake and growth of hybrid carp (female grass carp, Ctenopharyngodon idella× male bighead, Aristichthys (Hypophthalmichthys) nobilis) fed on zooplankton and Chara

Kilambi

Zdinak

1982

Journal of Fish Biology

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“…Watkins et al. (1981) examined gut contents of fingerlings ranging from 17 to 117 mm total body length (TBL) and found out that Hydrilla, Hydrilla spp., along with bank vegetation accounted for 86% of the diet of larger fish (TBL > 86 mm): the grass carp could naturally tolerate higher amounts of macrophytes in their diet and probably made good use of it.…”

Section: Discussionmentioning

confidence: 99%

Investigations on the digestibility and metabolizability of the major nutrients and energy of maize leaves and barnyard grass in grass carp (Ctenopharyngodon idella)

Dongmeza

Francis

Steinbronn

et al. 2009

Aquaculture Nutrition

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In the uplands of northern Vietnam, culture of grass carp contributes significantly to income and household food security of Black Thai farmers. Maize is one of the most important upland crops and barnyard grass is the most important weed in the paddy rice fields. Thus, these are frequently used by small‐scale fish farmers as fish feed. An 8‐week feeding trial was conducted simultaneously in a recirculation and in a respirometric system to determine the digestibility and metabolizability of the nutrients of maize leaves and barnyard grass, to assess their crude protein, lipid and energy conversion and to estimate the energy allocation in grass carp. The following diets were used: diet ‘A’ (reference diet) containing 39% crude protein with 19.8 MJ kg−1 gross energy; diets ‘B’, ‘C’ and ‘D’, which contained the same amount of the reference diet as the control diet, supplemented with a known amount of dried barnyard grass, dried maize leaves or fresh maize leaves, respectively. Five fish were assigned to each treatment in each experimental unit. Reference and test diets were fed to fish and faecal samples were collected and the oxygen consumption was measured in order to set up an energy budget of the fish over the whole experimental period. The weekly development of the body weight was recorded. The body weight gain of the fish fed diet D was significantly higher than that of the group fed diet A, which also in turn was significantly higher than that of fish fed diet B or C. The apparent digestibility coefficients (ADC) of nutrients and gross energy for the different experimental diets in fish kept in the aquaria were, for diets A, B, C and D respectively, 94.1%, 60.9%, 70.5% and 84.7% for protein, 91.3%, 60.7%, 76.8% and 71.8% for lipid; 95.9%, 44.5%, 60.6% and 69.1% for gross energy. The partial ADC of plant leaf ingredients were determined and barnyard grass and dried maize leaves were found to be not only poorly digestible but having negative impact on the digestibility of the reference diet, while fresh maize leaves were well digested. The results of the present study indicated that fresh maize leaves have a good potential to be used as supplement in diets for grass carp.

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“…The proportion of macrophytes consumed increases with grass carp growth (Opuszynski, 1972). Watkins et al (1981) examined gut contents of 181 fingerlings ranging from 17 to 117 mm TL. Fish of 17-31 mm TL consumed primarily benthic invertebrates.…”

Section: Food Habits Consumption and Assimilationmentioning

confidence: 99%

Biology and management of grass carp (Ctenopharyngodon idella, Cyprinidae) for vegetation control: a North American perspective

Chilton

Muoneke

1992

Rev Fish Biol Fisheries

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Food Habits of Fingerling Grass Carp

Cited by 17 publications

References 0 publications

Food intake and growth of hybrid carp (female grass carp, Ctenopharyngodon idella× male bighead, Aristichthys (Hypophthalmichthys) nobilis) fed on zooplankton and Chara

Food intake and growth of hybrid carp (female grass carp, Ctenopharyngodon idella× male bighead, Aristichthys (Hypophthalmichthys) nobilis) fed on zooplankton and Chara

Investigations on the digestibility and metabolizability of the major nutrients and energy of maize leaves and barnyard grass in grass carp (Ctenopharyngodon idella)

Biology and management of grass carp (Ctenopharyngodon idella, Cyprinidae) for vegetation control: a North American perspective

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